In the duel on horseback between Johnny and Notah, Johnny rides a black horse and Notah is on a brown horse. After it's over, the wounded Johnny rides into view and falls off a brown horse. Then, when it's time to lead the Comanches back to the reservation, he's back on a black horse again.
The White Fawn and Kah To fight takes place in a sandy dry area. When Johnny Moon finds them the ground cover is green and there is a stream running through where they are laying.
When the creepy bounty hunter tries to bushwhack Johnny outside the saloon, Johnny kills him, supposedly with his pistol as both are falling back, before he even pulls it from the holster.
When Johnny is shown in the second-story window from the front, he holds his gun at his hip. From the rear, he is holding his gun up by this face.
When Johnny kills the two men about to do the hanging, he fires two shots, and with each shot, one of the men falls dead. However, the first shot is seen and heard to go off when the gun is still pointing at the ground.
When Joseph Cotten walks out of the saloon, you can see extras (a couple) waiting for him to walk into the scene and then they start walking.
When the general gets on his horse, an extra is waiting to walk.
The day after being dragged from a stagecoach and raped, neither Kelly nor any woman, would ride out of town and the safety of her hotel ALONE to bathe in a watering hole.
Nothing in Shatner's wardrobe, makeup or diction in either role suggests the characters' half-Comanche lineage. He would have been more authentic as Brother Silas in the Da Vinci Code.